
I think it will work fine with a speaker through a wire. Sometimes it does not turn on from the button the first time, you have to reboot Top for your money - 4.5K

DC/DC 12V To 24V Boost Converter 40A 960W - Waterproof Voltage Regulator Module For Car Power Supply (10V-16V Input)
15 Review

TV Tuner LUMAX DV-2120HD
15 Review

Kohree 36V To 12V DC/DC Converter Regulator - 10A 120W Golf Cart Voltage Reducer
17 Review

Dorhea LM2596 DC-DC Buck Converter Step-Down Regulator 4.0-40V To 1.25-37V DC 36V To 24V To 12V To 5V Volt Power Supply Module With LED Voltmeter Display Compatible With Car Motor Buck
16 Review